Connection to the theme: 2/5. I don't think the game simply being inspired by an older game makes it fit the theme.
Enjoyment: 5/5. It was really fun except for a few issues I'll talk about in Gameplay.
Presentation: 4/5. The music is AWESOME and the art style is pretty unique, but abruptly changing frames to imitate some kind of floating effect (i mean the background thing) and the sharp, crude sprite edges make my eyes hurt a bit after half an hour. Maybe adding more frames to those and making their edges cleaner would improve it.
Gameplay: 3/5. It's great, but too repetitive. You're introducing every tower and almost every enemy in the first 10 out of 25 minutes of the game. And for the other 15 minutes it's only the amount of enemies that changes. It would be better if both the towers and the enemies were introduced one at a time and the waves were shorter (or dynamic, like in PvZ where if you kill all enemies the next wave comes sooner).
Creativity: 3/5. Most of the game is just redesigned PvZ, though there definitely are some unique elements.